Hermalle-sous-Argenteau Weather in September

September in Hermalle-sous-Argenteau brings pleasant temperatures, with daytime highs of 20°C (68°F) and nights around 11°C (52°F). Quite a bit of rainfall is expected, around 73 mm (2.9 in), so pack an umbrella.

Rainfall in Hermalle-sous-Argenteau in September

Records from the past 30 years suggest around 15 days of rain, with 73 mm (2.9 in) average for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Hermalle-sous-Argenteau in September

Weather in Hermalle-sous-Argenteau is at its excellent in September. Highs reach 20°C (68°F), while nights settle around 11°C (52°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Hermalle-sous-Argenteau in September

The area enjoys a moderate level of sunlight, with around 159 hours. It's a good balance between sunny and cloudy days.

Wind Speed in Hermalle-sous-Argenteau in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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For a detailed overview over the year and the best time to visit Belgium, check out our Hermalle-sous-Argenteau's climate page.

Hermalle-sous-Argenteau Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 48%  

Precipitation 73 mm (2.9 in)  

Rainy days 15 days  

Humidity 80% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 159 hours *  

Percentage Sunshine 41% *  

* Data from: Maastricht, the Netherlands (24 KM, 14 Miles).

What to Wear in Hermalle-sous-Argenteau in September

For Hermalle-sous-Argenteau in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Hermalle-sous-Argenteau in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Belgium, check out our Hermalle-sous-Argenteau's climate page.

More climate data for Hermalle-sous-Argenteau

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Hermalle-sous-Argenteau climate overview or explore weather in Belgium.